제출 #1319175

#제출 시각아이디문제언어결과실행 시간메모리
1319175dnnnda죄수들의 도전 (IOI22_prison)C++20
47 / 100
9 ms1336 KiB
#include "prison.h" #include<bits/stdc++.h> using namespace std; using ll=long long; std::vector<std::vector<int>> devise_strategy(int N) { vector<int> po3={1,3,9,27,81,243,729,2187,6561}; vector<vector<int>> ret(33,vector<int>(N+1)); ret[0][0]=0; for(int i=0 ; i<=3 ; i++) for(int j=0 ; j<=7 ; j++){ ret[j*4+i+1][0]=(i==3 ? 0 : 1); } for(int j=1 ; j<=N ; j++){ ret[0][j]=7*4+j/2187+1; } for(int i=1 ; i<=32 ; i++) for(int j=1 ; j<=N ; j++){ int rd=(i-1)/4, re=(i-1)%4; if(re==3) ret[i][j]=rd*4+j/(po3[rd])%3+1; else{ int temp=j/(po3[rd])%3; if(temp<re) ret[i][j]=-2; else if(temp>re) ret[i][j]=-1; else ret[i][j]=(rd-1)*4+3+1; } } return ret; }
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